How is any of this bashing Hasselblad?
The lens has other issues on top of image circle vignetting.
Hasselblad decided to not make this lens work with film backs most likely due to the very high light falloff that has to be corrected in post.
Fall off at the corners of the larger sensors is just over two stops (100 at the center and 20 in the corners). While this is corrected digitally it is like pushing your images
2 stops in post.. for the corners. That is going to increase noise in the corners especially if need to shoot higher ISO.
It's a trade off. They have previously state that it is to reduce CA inexpensively and to keep weight down. I wonder how this trade off will pay off in the field.
It would be nice if they came out with a graduated center spot filter to correct this and not push the corners digitally. Would be a better option for landscape.
That said some people like brightness fall off in lenses... sometimes it's quite nice.
The fall off is less as you stop down but it may still be significant. It is still about a stop at f8. Should be minimal at f16.
It's 75% fact
(in green) and 25% mild speculation (in orange). Bashing? Heck no. Unless you define bashing as someone pointing out "an inconvenient truth".
What I want to know is - when will people stop bashing Fred? Unlike some people here, his arguments are at least evidence-based.